From the FAQ about stirling :
Q. What is "Stirling"?
A.
Forefront codename “Stirling” is an integrated security suite that delivers comprehensive protection across endpoint, application servers, and the edge that is easier to manage and control.
It includes:
-
Central management console for security configuration and enterprise-wide visibility
-
Next-generation endpoint protection: Forefront Client Security (FCS)
-
Next-generation messaging and collaboration protection: Forefront Security for Exchange Server (FSE) and Forefront Security for SharePoint (FSSP)
-
Next-gen edge protection: Internet Security & Acceleration Server, to be renamed Threat Management Gateway (“Forefront TMG”)
So I think that the management console for stirling is embeded within the package available on the stirling portal.